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Replace the fallback of avr_read_byte() and avr_write_byte() to

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avr_read_byte_default() and avr_write_byte_default (resp.) by directly
calling the latter functions from within all programmers that don't
implement their own read_byte()/write_byte() methods.  In turn, make the
read_byte() and write_byte() methods mandatory, and the cmd() method
(direct ISP command) optional instead (it's effectively mandatory for
any programmer using avr_read_byte_default()/avr_write_byte_default()
though).  Remove all the pointless cmd() method stubs from those programmers
that don't need it.

Eliminate avr_read_byte() as it was now completely identical to
pgm->read_byte().


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@684 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch
2006-11-20 15:04:09 +00:00
parent 23aeb38d13
commit afb13a9936
14 changed files with 141 additions and 114 deletions
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6
butterfly.c
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@@ -661,17 +661,15 @@ void butterfly_initpgm(PROGRAMMER * pgm)
pgm->powerdown = butterfly_powerdown;
pgm->program_enable = butterfly_program_enable;
pgm->chip_erase = butterfly_chip_erase;
/* pgm->cmd not supported, use default error message */
pgm->open = butterfly_open;
pgm->close = butterfly_close;
pgm->read_byte = butterfly_read_byte;
pgm->write_byte = butterfly_write_byte;
/*
* optional functions
*/
pgm->write_byte = butterfly_write_byte;
pgm->read_byte = butterfly_read_byte;
pgm->paged_write = butterfly_paged_write;
pgm->paged_load = butterfly_paged_load;